nice concept. The fog does make it hard to see where the arrow is when you miss, maybe if the arrow was a brigther color it would be easier to find. It's also hard to predict where youll shoot without crosshairs.
I could have probably lessened the fog a bit. If I had more time, I would have used a particle effect or shader to make the arrow sparkle when it was on the ground/wall.
I also had a bug with the crosshairs. Sometimes they show up, and other times they don’t.